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Idiopathic Pseudoaneurysm of the Mitral-Aortic Intervalvular Fibrosa
Prashant Mishra1, Supreet P Marathe1, Balaji Aironi1
1Dr PK Sen Department of Cardiovascular and Thoracic Surgery, Seth GS Medical College and King Edward Memorial Hospital, Parel, Mumbai, India.
Abstract:
The mitral-aortic intervalvular fibrosa is an avascular fibrous structure between the anterior mitral leaflet and the aortic annulus. Pseudoaneurysm formation of the mitral-aortic intervalvular fibrosa is a rare but known entity most commonly caused by infective endocarditis or valve surgery. We present a 29-year-old patient with a mitral-aortic intervalvular fibrosa pseudoaneurysm of no evident cause who was successfully managed surgically.
Insights
Mitral-aortic intervalvular fibrosa pseudoaneurysms are rare, often linked to infection or surgery. This case highlights successful surgical management of a pseudoaneurysm without an apparent cause in a young patient.
Area of Science:
- Cardiology
- Cardiac Surgery
- Pathology
Background:
- The mitral-aortic intervalvular fibrosa (MAIVF) is a critical anatomical structure.
- Pseudoaneurysms of the MAIVF are uncommon cardiovascular emergencies.
- Etiologies typically include infective endocarditis or prior cardiac surgery.
Observation:
- A 29-year-old patient presented with a pseudoaneurysm of the mitral-aortic intervalvular fibrosa.
- No clear cause, such as infection or prior surgery, was identified for the pseudoaneurysm.
- The patient's clinical presentation necessitated prompt intervention.
Findings:
- The diagnostic workup confirmed a pseudoaneurysm originating from the mitral-aortic intervalvular fibrosa.
- The absence of a typical underlying cause presented a unique clinical challenge.
- Surgical intervention was deemed the most appropriate management strategy.
Implications:
- This case expands the understanding of MAIVF pseudoaneurysm etiologies.
- It underscores the importance of considering surgical repair even in idiopathic cases.
- Successful surgical management offers a viable treatment option for this rare condition.
Related Concept Videos
Aneurysm I: Introduction
Mitral Stenosis I: Introduction
Mitral Valve Prolapse I: Introduction
Mitral Regurgitation I: Introduction
Mitral Valve Prolapse II: Assessment and Management
Aortic Regurgitation I: Introduction

